Improved water-closet valve



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Lette/rs Patent No. 85,909,

dated January 19, 1869.

IIWPROVED WATER-CLOSET VALVE.

The Schedule referred to in theseLetters Patent and making pan. of the same To all whom t lma/y conce/rn:

Be it known that I, WILLIAM S` COOPER, of Philadelphia, in the State of Pennsylvania, have inventeda' new and useful Improvement in Water-Closet Valves; and I do hereby declare that the following is afull, clear, and exact description of the same, reference being had to the accompanying drawings, and letters of reference marked thereon, making a part of this specification, in which- Figure l. is a longitudinfl vertical section of the valve-case through the ports, exhibiting a side elevaA tion of the plunger, to thebottom-piece; and

`Figure 2 is a longitudinal vertical section through the plunger A, showing the shape of the bevelled flange l.

To enable those skilled in the art to make and use my invention, I now proceed to describe its construction and operation.

Similar letters in the drawings refer to like parts. This invention consists of a cylindrical plunger, provided with a series of recesses in its outer surface, so arranged that while the plunger is passing through a packing-ring fitting it water-tight, water may be transmitted from one side to the other of said packing-ring, through said recesses; also, of a bevelled ange, forming part o f the aforesaid plunger, and operating in connection with a bevelled packing-ring, to make-a watertight joint, as will hereinafter more fully appear.

A represents a metallic casing, of tubular form, provided with outlet and inlet-ports, a a', and a conical top, with a circular oriice at the upper portion there- Aof, in which orifice is a plug, b, fitted to slide freely, to the bottom of which is attached a circular diaphragm of rubber, b', the edges of which are rmly confined between the conical top of the casing A and the upper end of said casing.

The outlet and inlet-ports a a open into the casing, about opposite each other, and from the inner surface of said casing projects a circular' ange, c, about at the centres of the portsV To the inner surface of the flange c is firmly attached a packing-ring, c', projecting a short distance below the ilange c, said packing-ring having a straight inner surface and a bevelled outer surface, and being held tirmly in position .by a nut.

To the bottom of the casing A is screwed an. endpiece, d, provided with a hollow stem, d, into which tits a regulating-screw, e, having a hollow slotted stem, e', on its upper end, operating in'connection with a water-passage, It, in the hollow stem d', all these lastmentionedparts being described in my patent of March 10,1868, tn which reference is made for a more particular setting forth of their operation, they forming ne part of my'present invention.

spring, and hollow stem attached B represents a cylindiical plunger, provided with a series of recesses, t', of a length greater than the-width of the aforesaid packing-1ing'c,'and arranged in aregular row around the lower partof the plunger, one or two of said recesses being of greaterlength than the others.

Said plunger closely fits the packing-ring c', and has four or more standards, la, upon its lower end, which support a disk, It', bearing a packing-ring, t, upon its periphery, which packing-rin g fits closely the inner surface of the casing A.

A flange, l, surrounds the lower end ofthe plunger B, saidtlange being inclinedupward and outward at its upper edge, or being, in other Words, an outwardbevelled iange at its upper side, the object of'such bevelling being that a tight joint may be made when the flange shuts up around the before-mentioned pack`- ing-ring c. 4

A spiral spring, m, is interposed between the disk lo and the bottom-piece d, said spring surrounding the hollow stem d.

Operation.

Suppose the above-described mechanism to be placed in a water-closet, in such position that the descent of the seat, under the weight of one easing himself, shall force the plugb downward. Said plugas it descends, forces the plunger B downward so far that all the recesses t', except the longer ones, are carried past the packingring c. The surface of the plunger is then in contact with the packing-ring at all points, so that no ,water can ow between the two, except through the afore' said longer recesses, during all 'the time the seat is depressed, by which means all wasteV of water is prevented during the easing-operation. When the s ittcr rises, the spiral spring m forces the plunger B upward, so that the recesses t' pass the packing-ring c, and during this passage, which takes place slowly, water may pass between the plunger and packing-ring through the recesses. When the plunger rises high enough to bring 4the bevelled lange l in contact with the bevelled 

